Note: Troubleshooting should start with the simplest operations and proceed in order of increasing complexity.
1. Check tire pressure and other preliminary checks.
2. Check for trouble codes.
3. Check the gear change. If the switching is correct, check the electrical part of the control system.
4. Carry out the following checks:
- A) Road tests. Make sure the problem is with the variator.
- b) Hydraulic tests. Measure the pressure in the indicated lines.
- V) Checking the transmission time. The wear of the variator parts is checked.
Variable speed drive.
1 - planetary gear epicycle,
2 - planet carrier,
3 - reverse brake,
4 - forward clutch,
5 - variator belt,
6 - drive pulley,
7 - flywheel,
8 - flywheel drive plate,
9 input shaft,
10 - variator pump,
11 - parking brake mechanism,
12 - intermediate drive gear,
13 - starting clutch,
14 - main gear shaft,
15 - main gear drive gear,
16 - differential,
17 - driven gear of the main gear,
18 - driven gear of the intermediate gear,
19 - driven pulley,
20 - intermediate part of the variator housing,
21 - cover of the crankcase of the variator.
CVT control system signals.
1 - battery,
2 - ignition lock,
3 - main relay,
4 - brake light switch,
5 - to stop lights,
6 - diagnostic connector,
7 - ABS control unit,
8 - instrument cluster,
9 - control unit,
10 - selector position sensor,
11 - solenoid valve for pulley pressure control,
12 - solenoid valve for start and clutch control,
13 - solenoid valve for speed change,
14 - start inhibit solenoid valve,
15 - throttle position sensor,
16 - engine coolant temperature sensor,
17 - drive pulley speed sensor,
18 - pressure sensor in the exhaust manifold,
19 - speed sensor of the driven pulley,
20 - variator speed sensor.